Mechanically-operated standing valve for oil-well pumps



Sept.v 14 1926.

J. A. DYSON MECHANICALLY PERATED STANDIG VALVE FOB OIL WELL PUMPS Filed may 14 Patented Sept. 14, 1926.

UNITED STATES PATENT OFFICE.

JOHN A. DYSON, F LOS ANGELES, CALIFORNIA.

Application filed May 14,

This invention relates to pumps and more particularly it relates to pumps for wells.

An object of this invention is the provision of an improved pump for oil wells in which a comparatively high gas pressure is encountered.

Another object of this invention is the provision in a well pump of a standing valve operable in a well having a comparatively high gas pressure.

A further object of this invention is the provision of a mechanically operated standing valve.

A still furtheriobject of this invention is the provision of improved means for withdrawing a standing valve trom a well.

`fith the foregoing objects in view, tegether with such other .objects and advantages as may subsequently appear, this invention consists in the construction and arrangement of partshereinatter described and claimed and illustrated in the accompanying drawings, in which:

Figure 1 is a longitudinal section o't' my improved device in combination with the associated parts,

Fig' 2 is a section taken on the line 2--2 of Fig. 1,

Fig. 3 is a section taken onthe line 3--8 of Fig.. 1,

Fig. l is a section taken on the line 4--4 of Fig. 1, and

Fig. 5 is a section taken on the line 5--5 of Fig. 1.

Referring to the drawings Jfor aV more detailed description thereof. the numeral 7 indicates a section ot a working barrel, the bore of which is enlarged at its .lower end and is provided with internal jthreads 8 which engage threads formed on the upper end of a nipple 9. -The lower end of the nipple 9 is provided with male threads which engage female threads formed in the enlarged bore in the upper end of a pipe 10, the lowerend oi' which is internally threaded to receive the upper end ot a pipe 12.

A plunger 13 is slidably fitted in the working barrel 7. The lower end of the plunger 13 is internally threaded to receiveV a valve seat 14 having valve ports 141 separated by an apertured web 14') through which passes 1924. Serial No. 713,207.

enlargement 16 at its upper end which is free.

Integral with the valve seat 14 is a tubular member 18 encircling with a. working tit` the piston rod 15. The member 18 is encircled by a valve 19` adapted to close'the valve ports 14a and to be moved therefrom. lThe member 18 extends above the valve 19, forming a section 2O having an enlarged bore 21 adapted to receive lpacking which isenclosed around the piston rod by a packing gland 22 which is pressed down on the packing by a packing nut 23 which is provided with temale threads engaging male threads formed on the upper end of the seetion 20. A coiled spring 211 encircles the section 2O and is held between the nut or cap 28 and the valve 19. .The lower end of the tubular member 18 is providedwith depending arcuate tongues 25 oppositely disposed to each other.

A tubular member 27 is tted into the pipe 10 and is secured thereto at its lower end by male threads which engage female threads formed in the pipe 10. The upper end oll the tubular member 27 threadedly engages a plate 28 provided with ports 29 separated by a web 30 provided with an aperture through which the piston rod 15 extends. The lower end of the piston rod 15 thread-z edly engages the upper end oit a piston or standing valve 82 which is provided with arcuate apertures 33 adjacent the piston rod 15. The lower portion o1c the aperture through thetubular member 27 is enlarged at 35; and in this enlarged portion of the aperture of the tubular member 27 is positioned a valve seat .36 secured by depending members 37, the upper ends ot which are secured to the shoulder formed in the member 18 by the enlargement of the bore at The valve seat 36is provided with a `tibre washer 86a. Avbolt 88 having a head 39 passes through the valve seat 3G and through the washer 36a, and is provided at its lower end with a. nut AO.

In the operation of the mechanism shown, when the plunger is pushed downwardly. the Garbutt rod 15, by reason of the friction between it and the packing;l in the member 18, also descends until the piston rests on its seat 36, the valve 19 opening,` as the plunger descends. As the plunger rises, the piston 32 also rises, thus allowingv the oil or other liquid to rise into the chamber above the piston.

It will be readily appreciated that according to the construction shown. my improved pump is operable in opposition to ras pressure in the well which frequently has the effect ot keeping the standing' valve, usually employed, from being; seated and thus prevents the functioning` oit the pump.

lVhen it is desired to withdraw the tubular member 27 and the standing' valve 32 from the well, the plunger is lowered until the tongues or lugs 25 engage the apertures inthe plate 28, and the plunger is then rotated to unscrew the tubular member 27 from the pipe 10. The sucker rods are then pulled up by which action the stan ding,l valve 32 and the tubular member 27 together with the valve seat 36 attached to it are pulled up out of the well.

This invention has been described, but modifications thereof may be devised without departingfrom the spirit thereof, and it is to be understood that such modiiications come within the scope ot this invention.

That is claimed is:

A1. In a pump, a pipe, a tubular member litted into said pipe and threadedly engaging the same, an apertured web at the upper end of said tubular member, said tubular member having its lower portion enlarrjed interiorly, a standing valve seat positioned in the enlarged portion and et smaller diameter than the enlarged portion and securely held against substantial displacement by `gas pressure, and a standing valve adapted to work in said tubular member, said valve having apertures at its upper end.

2. In a pump, a pipe, a tubular member fitted into said pipe and disengageably secured to the same, said tubular member having' its lower portion enlarged interiorly, a

standing valve seat positioned in the enlarged portion and securely held against er:m cessive displacement, a standing valve adapted to work in said tubular member, said valve havingapertures at its upper end., a nd a rod secured to said valve.

3. In a pump, a pipe, a tubular member fitted into said pipe and threadedly engaging the saine, an apertured webv at the upper end of said tubular member, said tubular member having its lower portion enlarged interiorly, a standing valve seat positioned in the enlarged portion and of smaller diameter than the enlarged portion and securely held against substantial displaeen'ient by `njas pressure, a standing valve adapted to worli in said tubular member, said valve having; apertures at its upper end, a rod secured to said valve, said rod being adapted to work through said web in the upper end ot said tubular member, a plunger encircling said rod, and means in said plunger tor disengaging` said tubular member 'from said pipe.

el. In a pump, a pipe, atubular member fitted into sain pipe and threadedly engaging the same, an apertured web secured to the upper end ot said tubular member, said tubular member having its lower portion enlarged interiorly, a standing valve seat posit'oned in the enlarged portion and ot smaller diameter than the enlarged portion and securely held against excessive displacement, a standing' valve adapted to work in said tubular member, said valve having apertures at `its upper end, a rod secured to said valve,

said rod being adapted to work through said web in the upper end et said tubular member, a plunger encircling said rod and tongues termed on the lower end ot said plunger to engage apertures in said web, whereby said tubular member may be disons gagjed Yfrom said pipe.

5. A standing valve for plunger pumps comprising; a tubular member having` a cylindrical bore therethrough, a tubular closure member slidable within said bore, and means providing a seat against which the lower edges et the closure member may seat, whereby the bottom oit the closure member may be closed.

6. A. standing valve tor pumps having plungers comprising` a tubular member having cylindrical bore therethrough, a tubuclosure member slidable within said bore, means .providing a seat against which the lower edges ot the closure member may seat, whereby the bottom ot they closure member may be closed, and means adapted to connect the closure member to the plunger ol' the pump whereby the closure member may be forcibly seated and unseated upon reciprocation of the plunger.

.7. A standing' valve `for pumps having plungers comprising' a tubular member havingr a cylindrical bore termed in its upper end and au enlarged chamber in its lower end communicating with the bore, a tubular closure member slidable in said bore.` means providing; a seat in said chamber below the lower end et said bore upon which the lower edu-es ot the closure member are adapted to seat so as to close its lower end, and means adapted to connect said closure member to the plunger ot the pump, so that it may be forcibly seated and unseated upon reciprocation o'lE the plunger.

8. A standing valve tor plunger pumps comprising a tubular member having: a cylindrical bore termed in its upper end and an enlarged chan'iber termed in its lower end commimica'ting with said bore, a tubular closure member reciprocable in said bore, means forming a seat in said chamber below said bore upon which the lower edges 0f said closure member may seat to close its lower enel, Spielers mounted upon the upper ends of said closure member and tubular member, and a rod secured to the spider on the closure member und sliclebly extending through the spider on the tubular member,

said rod being adapted to have a slideble but friction connection with the plunger of a pump so that the closure member may be l0 forcibly seated and unseatecl thereby.

In testimony whereof I have signed my name to this specification.

JOHN A. DYSON. 

